xvi Proceedings, &a, for 1868. 



four hours. There being seventy-five per cent, of water in meat, 

 this would be equivalent to the freezing of 548 lbs. of meat. So 

 that at that rate it would take eleven years to freeze a cargo of 1000 

 tons. Again, the air contained suspended moisture, and a portion of 

 the cooling power was expended in freezing this moisture, from which 

 1100 degrees of latent heat would have to be abstracted. It was 

 this very defect that made the delusive show at Chemnitz and Mount 

 Cenis. 



Mr. Postle denied the correctness, of Mr. Harrison's assertion, and 

 said that a machine by Mr. Kirk had been found far superior to one 

 invented by Mr. Harrison, referring to the " Practical Machines 

 Magazine," of 1863, for a confirmation of the assertion. Mr. Postle 

 also spoke of the science of Thermo-dynamics which he said was not 

 understood by Mr. Harrison, and generally defended the plan he had 

 propounded of preserving meat. 



Mr. Harrison objected to being bound by the working of a machine 

 which he had not seen, and the maker of which, as was shown 

 in a chancery suit, had been infringing on one of his patents. 



A short discussion took place between the members generally, and 

 the President terminated the subject, by expressing his gratification 

 that the matter was likely to be taken up, and that the colony must 

 eventually benefit by discussions such as had that evening taken 

 place. 



(Signed) Kobt. L. J. Ellery. 



May 11, 18G8. 



Ordinary Meeting. 



Monday, \lth May, 1868. 



The President, K. L. J. Ellery, Esq., in the chair. 



The following contributions to the library were acknowledged : — 

 " Fragmenta Phytographise Australia," No. 46, by Dr. Mueller. 

 " Tables and Calculations," by Professor C. D. Hall (Lund.) ; pre- 

 sented by Dr. Mueller. 



The President stated that a sub-committee, appointed by the 

 Council to examine and report upon the repairs and additions 

 required to the hall, with a view of yielding members more 

 accommodation at the meetings, obtaining better access to the 

 library and preserving the building and grounds, found that the 

 proposed alterations would cost from £750 to .£800. At an early 

 day the Council would come before the members with a definite 

 proposal for raising this sum. 



The president read a paper, " Notes on Aneroid Barometers, and 

 on a Method of Obtaining their Errors." (See part 1, Transactions.) 



Mr. A. K. Smith said while listening to the clear statement just 

 read, his attention had been called to the Barometer made by 



